v1.1.0-beta.2

Windows 7: Use an alternate mechanism for notifications (#1812)

Retry failed signed key rotation; start rotation when registered (#1772)

Dev:
  - Update to electron-builder 19.29.0; may allow windows shortcut to
    stay deleted on update (#1804)
  - aptly.sh: Instructions for pruning old packages from repo (#1771)
  - Update development branch to include everything up to v1.0.39
    0e328f3911

package.json

@@ -3,7 +3,7 @@
   "productName": "Signal",
   "description": "Private messaging from your desktop",
   "repository": "https://github.com/WhisperSystems/Signal-Desktop.git",
-  "version": "1.1.0-beta.1",
+  "version": "1.1.0-beta.2",
   "license": "GPL-3.0",
   "author": {
     "name": "Open Whisper Systems",